*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-text: #1c1917;
  --color-text-muted: #57534e;
  --color-accent: #1d4ed8;
  --color-accent-hover: #1e40af;
  --color-border: #e7e5e4;
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --max-width: 960px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- NAV ---- */

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

nav a:hover {
  color: var(--color-text);
}

/* ---- HERO ---- */

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
  text-align: center;
}

.hero-image {
  max-width: 720px;
  margin: 0 auto 2.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.hero-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 2rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
}

.btn:hover {
  background: var(--color-accent-hover);
}

/* ---- SECTIONS ---- */

section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

h2 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

/* ---- SERVICES ---- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---- AIRCRAFT ---- */

.aircraft p {
  color: var(--color-text-muted);
}

.aircraft-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.aircraft-list li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.5rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.aircraft-list + p {
  margin-top: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---- CONTACT ---- */

.contact {
  text-align: center;
  padding-bottom: 6rem;
}

.contact p {
  color: var(--color-text-muted);
  max-width: 460px;
  margin: 0 auto 2rem;
}

.contact-methods {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 2.5rem;
  min-width: 220px;
}

.contact-link:hover {
  border-color: var(--color-accent);
}

.contact-label {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.contact-value {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-accent);
}

/* ---- FOOTER ---- */

footer {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---- RESPONSIVE ---- */

@media (max-width: 600px) {
  nav ul {
    gap: 1.25rem;
  }

  .hero {
    padding: 4rem 1.5rem 3rem;
  }

  .contact-methods {
    flex-direction: column;
    align-items: center;
  }

  .contact-link {
    width: 100%;
    max-width: 300px;
  }
}